How WhatsApp Is Changing the Way Events Engage Guests

Getting someone to register for an event is the easy part. Getting them to actually show up: or log in for a virtual session: is where most event organisers lose ground. Email reminders go unread. Calendar invites get ignored. By the time the event starts, the gap between registered and attended can be enormous.

Businesses and organisers using WhatsApp to manage event communication are seeing fundamentally different outcomes. Here is what that looks like and how to build it.

The Attendance Problem WhatsApp Solves

Email open rates for event reminders typically sit in the 20 to 30 percent range on a good day. A reminder that does not get opened cannot drive attendance.

WhatsApp messages reach people differently. Intelli customers running events: including Code and Cocktails, Fidcon, and FitBeat Run Club: are seeing 65% of messages opened in the first hour and up to 91% opened within the first 72 hours for in-person events. For online workshops, webinars, and masterclasses, the numbers translate directly into attendance: Intelli-powered event communications have driven over 67% attendance rates for virtual events.

The mechanism is simple. WhatsApp lands in the same inbox as messages from friends and family. It notifies immediately. It does not get filtered into a promotions folder.

The Full Event Communication Cycle on WhatsApp

WhatsApp is not just for the day-of reminder. The channel adds value at every stage of the event lifecycle.

Before the Event: Registration and Anticipation

When someone registers for your event, a WhatsApp confirmation is the first touchpoint. It carries the key details: date, time, location or join link, what to bring or prepare: and it arrives immediately.

From there, a pre-event sequence builds anticipation and keeps the event top of mind:

7 days before: Reminder with a preview of what attendees will get from the event
3 days before: Speaker or agenda highlight to re-engage registrants
1 day before: Practical reminder with venue directions or join link
Morning of: Final reminder with a clear single action (join link, directions, what to bring)

Each of these is an automated template message sent to your opted-in registrant list. One person sets up the sequence. The platform sends it at the right time.

For online events like webinars and workshops, the morning-of reminder with the join link is the highest-impact message in the sequence. Intelli organisers running virtual sessions see their highest open rates in the hour before the event starts: and the attendance data confirms it converts.

During the Event: Live Engagement

WhatsApp can carry communication during the event itself:

Logistics updates. A venue change, a delay, a room reassignment: send it to all attendees instantly rather than hoping they check email.

Live polls and feedback. Send a link to a quick poll or rating form mid-session to capture engagement while the energy is still high.

Resource delivery. Slides, reference documents, or follow-up resources sent directly to attendees' WhatsApp while they are still in the room or session.

After the Event: Retention and Follow-Through

The post-event window is one of the most underused moments in event marketing. Attendees are at their highest level of engagement with your brand immediately after the event ends. Most businesses do nothing.

A WhatsApp post-event sequence captures that energy:

Within 1 hour: Thank-you message with key takeaways or a highlight
Day 2: Follow-up resources: recording link, slides, reading list
Day 7: Invitation to the next event or a relevant offer

For B2B events, the follow-up is also where lead capture happens. Attendees who expressed interest during the event receive a personalised follow-up from the AI assistant: gathering their requirements and routing high-intent leads to the sales team.

WhatsApp for Different Event Types

In-Person Events (Conferences, Networking, Workshops)

Code and Cocktails and Fidcon both see high open rates in the 24 hours before the event. The day-of reminder with practical directions and a QR code for check-in reduces arrival friction and cuts the queue at registration.

Post-event, the follow-up message with the session recording or slides maintains the relationship with attendees who cannot attend every session.

Fitness and Community Events

FitBeat Run Club uses WhatsApp to keep the community engaged between events: run reminders, route sharing, attendance confirmation, and post-run summaries all in the same channel. Community events live and die on the WhatsApp group or broadcast list being active.

Online Events (Webinars, Workshops, Masterclasses)

The join-link reminder sent 30 minutes before a webinar starts has a direct, measurable impact on attendance. For Intelli customers running online events, 67%+ attendance rates are the outcome of a well-timed WhatsApp sequence: not email.

Participants who register and then go quiet receive a re-engagement message 24 hours before the session reminding them what they will get from attending.

What You Need to Run This

An opted-in event registrant list. Collect WhatsApp opt-in at registration. This can be a checkbox at sign-up, a WhatsApp confirmation link, or a QR code at in-person check-in.

Pre-approved event templates. Your reminder and follow-up messages need to use WhatsApp-approved templates for business-initiated messages. Intelli's team can support template submission.

A broadcast tool that can segment by event. So your post-event follow-up only goes to people who attended that specific event, not everyone on your list.

All of this is available through Intelli's broadcast tool and AI assistant.

Ready to Improve Your Event Attendance?

If you are running events and want to see what a WhatsApp communication sequence looks like, book a demo or start a free trial.

Frequently Asked Questions

Can I use WhatsApp for events with hundreds or thousands of registrants? Yes. Broadcast campaigns on the WhatsApp Business API can send to your full opted-in list simultaneously. For very large events, your messaging tier determines the daily send limit: which can scale to unlimited with the right qualification steps.

Do I need separate WhatsApp numbers for different events? No. One WhatsApp Business number can serve multiple events through segmented broadcast lists. You tag contacts by event at registration and send campaign messages only to the relevant segment.

What if attendees reply to the reminder message? Replies come into your shared inbox. The AI assistant can handle common questions: directions, join link, parking, agenda. Queries the AI cannot resolve are routed to your team.

Is WhatsApp better than email for event communication? For reach and open rates, WhatsApp consistently outperforms email for event reminders. Email remains useful for detailed confirmations and documents. The strongest approach uses both: email for the booking confirmation and full event details, WhatsApp for the reminders that drive actual attendance.